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5 papers · 2 filters
Entanglement convertibility by sweeping through the quantum phases of the alternating bonds chain
Yu-Chin Tzeng, Li Dai, M. -C. Chung +2
We study the entanglement structure and the topological edge states of the ground state of the spin-1/2 XXZ model with bond alternation. We employ parity-density matrix renormaliza…
Information transmission over an amplitude damping channel with an arbitrary degree of memory
A. D'Arrigo, G. Benenti, G. Falci +1
We study the performance of a partially correlated amplitude damping channel acting on two qubits. We derive lower bounds for the single-shot classical capacity by studying two kin…
Coherent manipulation of noise-protected superconducting artificial atoms in the Lambda scheme
P. G. Di Stefano, E. Paladino, T. J. Pope +1
We propose a new protocol for thr manipulation of a three-level artificial atom in Lambda () configuration in the absence of a direct pump coupling. It allows faithful, selectiv…
Population transfer in a Lambda system induced by detunings
P. G. Di Stefano, E. Paladino, A. D'Arrigo +1
In this paper we propose a new protocol to achieve coherent population transfer between two states in a three-level atom by using two ac fields. It is based on the physics of Stimu…
Design of a Lambda configuration in artificial coherent nanostructures
P. G. Di Stefano, E. Paladino, A. D'Arrigo +2
The implementation of a three-level Lambda System in artificial atoms would allow to perform advanced control tasks typical of quantum optics in the solid state realm, with photons…